Chevrolet Trailblazer Service Manual page 428

To Install:
1. Apply GM P/N 12377985 grease to the slip yoke.
2. Align the rear propeller shaft to the marks on the transmission or transaxle.
3. Install the rear propeller shaft into the transmission or transaxle.
4. Align the rear propeller shaft to the marks on the rear axle pinion yoke.
5. Install the front propeller shaft onto the rear axle pinion yoke.
6. Attach the retainers to the rear axle pinion yoke. Torque the bolts to 15 ft-lb (20
Nm).
7. Lower the vehicle.